Re: [PATCH 09/10] ch_driver: Add handler for console API

Add the handler function to find and open the console character device that will be used by the console API. Signed-off-by: William Douglas <william.douglas(a)intel.com&gt; --- src/ch/ch_driver.c | 77 ++++++++++++++++++++++++++++++++++++++++++++++ 1 file changed, 77 insertions(+) diff --git a/src/ch/ch_driver.c b/src/ch/ch_driver.c index ac958d73a8..b0b8e19120 100644 --- a/src/ch/ch_driver.c +++ b/src/ch/ch_driver.c @@ -30,6 +30,7 @@ #include "viraccessapicheck.h" #include "viralloc.h" #include "virbuffer.h" +#include "virchrdev.h" #include "vircommand.h" #include "virerror.h" #include "virfile.h" @@ -816,6 +817,82 @@ static int chDomainGetInfo(virDomainPtr dom, return ret; } +static int +chDomainOpenConsole(virDomainPtr dom, + const char *dev_name, + virStreamPtr st, + unsigned int flags) +{ + virDomainObj *vm = NULL; + int ret = -1; + size_t i; + virDomainChrDef *chr = NULL; + virCHDomainObjPrivate *priv; + + virCheckFlags(VIR_DOMAIN_CONSOLE_SAFE | VIR_DOMAIN_CONSOLE_FORCE, -1); + + if (!(vm = chDomObjFromDomain(dom))) + goto cleanup; + + if (virDomainOpenConsoleEnsureACL(dom->conn, vm->def) < 0) + goto cleanup; + + if (virDomainObjCheckActive(vm) < 0) + goto cleanup; + + priv = vm->privateData; + + if (dev_name) { + for (i = 0; !chr && i < vm->def->nconsoles; i++) { + if (vm->def->consoles[i]->info.alias && + STREQ(dev_name, vm->def->consoles[i]->info.alias)) + chr = vm->def->consoles[i]; + } + for (i = 0; !chr && i < vm->def->nserials; i++) { + if (STREQ(dev_name, vm->def->serials[i]->info.alias)) + chr = vm->def->serials[i]; + } + for (i = 0; !chr && i < vm->def->nparallels; i++) { + if (STREQ(dev_name, vm->def->parallels[i]->info.alias)) + chr = vm->def->parallels[i]; + } + } else { + if (vm->def->nconsoles && + vm->def->consoles[0]->source->type == VIR_DOMAIN_CHR_TYPE_PTY) + chr = vm->def->consoles[0]; + else if (vm->def->nserials && + vm->def->serials[0]->source->type == VIR_DOMAIN_CHR_TYPE_PTY) + chr = vm->def->serials[0]; + } + + if (!chr) { + virReportError(VIR_ERR_INTERNAL_ERROR, _("cannot find character device %s"), + NULLSTR(dev_name)); + goto cleanup; + } + + if (chr->source->type != VIR_DOMAIN_CHR_TYPE_PTY) { + virReportError(VIR_ERR_INTERNAL_ERROR, + _("character device %s is not using a PTY"), + dev_name ? dev_name : NULLSTR(chr->info.alias)); + goto cleanup; + } + + /* handle mutually exclusive access to console devices */ + ret = virChrdevOpen(priv->chrdevs, chr->source, st, + (flags & VIR_DOMAIN_CONSOLE_FORCE) != 0);

+ + if (ret == 1) { + virReportError(VIR_ERR_OPERATION_FAILED, "%s", + _("Active console session exists for this domain")); + ret = -1; + } + + cleanup: + virDomainObjEndAPI(&vm); + return ret; +} + static int chStateCleanup(void) { if (ch_driver == NULL)